Platform Architect

Use this skill to route broad platform work into the correct web, native, backend, and tooling lanes without redoing the same repo preflight every turn.

Workflow

1. Read the repo AGENTS.md first for local constraints and canonical commands.
2. Run /home/bjorn/.codex/skill-support/bin/repo-inventory detect --cwd <repo> --out <json>.
3. Run /home/bjorn/.codex/skill-support/bin/repo-inventory matrix --input <json> --format md.
4. Choose the active lane:
   • Next.js / React web -> read references/next-web.md
   • Expo / React Native -> read references/expo-native.md
   • Mixed full-stack or monorepo coordination -> read references/fullstack-platform.md
5. Read references/tooling-and-verification.md before running checks or changing commands.
6. If the task narrows into a specialized domain, explicitly invoke the right downstream skill:
   • Convex architecture or audits -> $convex-audit or $convex-feature-spec
   • General web UI review -> repo-local $web-design-guidelines when installed
   • React/Next performance or render-quality review -> repo-local $vercel-react-best-practices when installed
   • Dash callback or Dash UI review -> $dash-audit
   • Design/build work -> $frontend-design
   • Docs sync -> $docs-align
   • Dependency work -> $gh-deps-intel

Use When

• The user asks for platform architecture, stack-wide planning, or implementation across web/native/backend boundaries.
• The repo shape is unclear and you need a deterministic platform inventory first.
• The work touches Next.js, Expo, Convex, Bun/pnpm, Turbo, or mixed platform concerns together.

Do Not Use When

• The task is only a dependency-upgrade workflow.
• The task is only PR/comment remediation.
• The task is only a docs drift pass.
• The task is only a narrow UI audit with no platform decisions.
• The task is a Dash-only audit with no cross-platform architecture work.

Outputs

• A short lane selection summary.
• A concrete implementation or review plan tied to the detected stack.
• Repo-native verification commands, not invented commands.
• Explicit downstream skill routing when the task narrows into UI, review, docs, or dependency work.

Resources

• Inventory wrapper: scripts/platform_inventory.py
• Web guidance: references/next-web.md
• Native guidance: references/expo-native.md
• Cross-stack guidance: references/fullstack-platform.md
• Verification policy: references/tooling-and-verification.md